Sometimes it's acceptable for fiction to take some dramatic license with science. Heroes dodging bullets beyond all reasonable probability, pretty much everything in Star Trek... However, sometimes things are just so egregious, so lazy that the absolutely have to be flagged up. In Valerian and the City of a Thousand Planets there's a lot of ridiculous stuff that just about stays within Suspension of Disbelief, but there's one scene where it's stated that Alpha has travelled the mind-bogg